Bo Marcus Gustafsson, M.D.
Emergency Medicine Physician · Riverside, CA
Bo Marcus Gustafsson, M.D. is an emergency medicine physician with a practice address in Riverside, California, and NPI 1801321682, issued on Apr 28, 2017. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bo Marcus Gustafsson
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 21577 NV
Self-reported in NPPES; status is on the state search - Practice location
- 4445 Magnolia Ave, Riverside, CA 92501
- Phone
- (951) 788-3000
- Enumerated
- Apr 28, 2017
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20241015002853); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 4445 Magnolia Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joey Abadilla, MDStudent in an Organized Health Care Education/Training Program1093417818
- Rashed AbdelaalDiagnostic Radiology Physician1518726090
- Ahmed Abdelhalim, MDDiagnostic Radiology Physician1275162927
- Nirusha AbeydeeraStudent in an Organized Health Care Education/Training Program1295354454
- Alyssa Aboff, CRNA, DNPCertified Registered Nurse Anesthetist1760133292
- Brandon Abrajan, DOStudent in an Organized Health Care Education/Training Program1861141186
Verify Bo Marcus Gustafsson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average emergency medicine physician in 2024
156 Medicare Part D claims for 97 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin20 claims
- Doxycycline Hyclate14 claims
- Prednisone14 claims
- Cefdinir12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Governor Juan F Luis Hospital And Medical CenterChristiansted, VI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bo Marcus Gustafsson among 7,751 emergency medicine physician records in California
Bo Marcus Gustafsson, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2017 · median 2011 among the 4,560 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Riverside → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jason An, M.D.Riverside, CA 925011851533905
- Ryan Brenchley, M.D.Riverside, CA 925011154437390
- Eugene Chan, M.D.Riverside, CA 925011952414674
- Kenneth Dale, D.ORiverside, CA 925011932158771
- Roberta Dunn-Dixon, M.D.Riverside, CA 925011548448970
- Richard Guth, M.DRiverside, CA 925011154437325
- Michael Kang, M.D.Riverside, CA 925011124294517
- James Kim, M.DRiverside, CA 925011861508038
Common questions
What is Bo Marcus Gustafsson, M.D.'s NPI number?
Bo Marcus Gustafsson, M.D.'s National Provider Identifier (NPI) is 1801321682, issued on Apr 28, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Bo Marcus Gustafsson, M.D. located?
The NPPES record lists a practice address at 4445 Magnolia Ave, Riverside, CA, 92501. Phone: (951) 788-3000. Providers update this record themselves, so call before visiting.
How can I verify Bo Marcus Gustafsson, M.D.'s license?
Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Bo Marcus Gustafsson, M.D. prescribe under Medicare Part D?
In 2024, Bo Marcus Gustafsson, M.D. had 156 Medicare Part D claims for 97 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.